Bending-machine.



H. W. BURDEN.

BBNDING MACHINE.

APPLICATION FILED FEB. 1, 1910.

1,011,419. Patented 0012.15, 191.2.

I'VIINESSES: 2 CIgVENTOR M 547% BY film/ ATTORNEY.

HOWARD W. BURDEN, OF SWAR'IHMORE, PENNSYLVANIA.

BENDING-MACHI'NE Specification of Letters Patent.

Patented Oct. 15, 1912.

Application filed February 1, 1910. Berial No. 541,268.

To all whom it may concern:

Be it known that I, Howaao W. Bosnian, a citizen of the United States,residing in Swarthmore, Delaware county, State of Pennsylvania, haveinvented certain new and useful Improvements in Bending-Machines, ofwhich the following is a specification.

Although I designate the machine or device embodying my invention as abending machine, I propose to use it, as illustrated in the drawings,for other purposes where power capable of being exerted by my machine isnecessary or required.

One of the objects of my invention is to provide a bending machine whichis particularly adapted for use in the straightening of automobile partssuch as the sides and ends of an under-frame. Such a machine in order tobe satisfactory and practical must be simple in its construct-ion andalso it must be capable of economical construction. It is also desirablethat a device for that purpose shall be reasonably light and capable ofbeing shifted from one position to another.

In order that power may be exerted in opposite directions upon the partsof an underframe of an automobile or a similar structure for the purposeof bringing various parts into alinement as desired and so that all ofthe straightening need not be made from one side or direction alone, Iprovide a machine or device capable of bending a bar or similar devicefrom two directions.

A further object of my invention is to provide a construction which inaddition to its capacity as a bending machine may be also used for thepurpose of withdrawing automobile and similar wheels or devices fromtheir journals or other supporting means.

For the purpose of illustrating and demonstrating the principle of myinvention, reference may be had to the accompanying drawings forming apart of this specification. It will be understood, however, that manychanges in the details of construction may be made within the scope ofthe specifi cation and claim without departing from my invention. y

In the drawings :Figure 1 is a side elevation of a bending machine ordevice embodying my invention and showing a channel bar in position tobe straightened; g. 2

ma similar view of my machine provided with means for straightening abar, which 1s shown 1n position, in the o posite direction; F g. is anend view 0 the machine shown in Flgs. 1 and 2 with one part which entersmto-its construction being shown in section; Fig. 4 is a perspectiveview of one of the parts shown in Fig. 2; and Fig. 5 is a view showingmy machine as it is used for withdrawing an automobile wheel from itsspindle.

Referring to the drawings :-1 designates a main cross head or bodymember which preferably though not necessarily, is of channelconstruction and may be constructed in any suitable manner, as by cast-8 designates supporting links ormembers which are adapted to be securedto the cross head 1 by means of bolts 4 which are secured in position bymeans of cotter pins 5. The cross head or body member 1 is pro videdwith a series of holes 6 for the purpose of permitting adjustment of thesupporting links or members 3 along the same. In Fig. 1 it will be notedthat the links are secured in the outermost of the said holes while inFig. 2 the links are shown as having been moved inwardly and in Fig. 5the links are shown as having been moved still farther inwardly. Thelinks 3 are provided with laterally projecting hooks 8 which are adaptedto support a bar 9 which is to be straightened. These hooks orprojections 8 are brought into use as abutments when it is desired tostraighten the bar outwardly as indicated in Fig. 1.

The means employed for straightening a bar outwardly consists of ascrew-threaded member 10 which engages a screw-threaded hole 2 through asolid portion at the center of the cross head or body member 1. Thescrew-threaded member 10 is turned by means of a lever 11 which isadapted to engage the squared end 12 thereon. Preferably the lower endof the member 10 is cone-shaped as indicated at 13. When it is desiredto straigthen a bar or channel member outwardly such member, as 9, isplaced upon the supporting projections or stops 8. Thereafter thescrew-threaded member is screwed downwardly and exerts a pressureagainst the said bar or similar member to force it downwardly oroutwardly so that the bent up portion, indicated at 15, may be forcedoutwardly into substantial alinement with the outer end portions 16 ofthe said bar. To prevent the end of the member 10 from contactin the bar8, a block 17 may interposed if desired. It frequently ha pens that thevarious parts of a bar, an particularly the side or end members of anunderframe such as that used in automobiles, cannot be brought properlyinto alinement and adjustment without also straightenin out certainportions of the sides or on of the frame in a direction opposite to thatshown in Fig. 1. For this purpose I have provided the device shown inFigs. 2 and 4 1n which the cross head or member 20 is placed in positionupon the member 10 being supported or held thereon by means of theshoulder at the upper end of the cone-shaped head or end 13. The crosshead or member 20 is provided with links or arms 21 which are secured bymeans of bolts '22 to the said member. The links 21 are provided withlateral projections or hooks 30 which are adapted to engage the part tobe straightened. These links or'arms are adjustable in the same manneras the links or arms 3 are adjustable on the main cross head or bodymember 1. It will be understood that the hole 23 through the member 20is large enough to permit the passage of the screwthreaded portion ofthe member 10 therethrough. The lower end of the said member above theshoulder is left smooth as is indicated.

25 designates stops or abutments which are movably carried or supportedupon the links or arms 3. These parts 25 consist of blocks provided withopenings through which the links 3 extend. They are movable upon thelinks 3 for the purpose of varying the width of space between the stopsor supporting projections 8 and the said stops 25 for the reception ofbars of difl'erent thicknesses to be straightened. Upward movement ofthe blocks 25 is prevented by means of pawls 27 which are held inengagement with the ratchet teeth 28 on the links 3 by means of springs29.

In the use of the device as illustrated in Fig. 2, the bar to bestraightened is placed directly within position, as indicated, and theprojections or books 30 placed in engagementtherewith. The member 10 isturned so as to move the same upwardly, that is, toward the member 1,and thus exert upward or inward force upon the said bar,-the' force.exerted by the parts 20 and 21 upon the .bar being transmitted to theblocks 25 the latter being prevented from moving upwardly by reason ofthe presence of the pawls 27.

In Fig. 5 I have shown my device as it is employed for withdrawing anautomobile wheel from its spindle. 35 designates a wheel in positionupon its spindle 36. When so employed the projections 8 upon the links 3are placed over the inner ends of any two of the spokes or any otherpart of the wheel and the part 10 is screwed downwardly or inwardlyagainst the end of tho-spindle 36. It is obvious that by so screwing ormoving the part 10 the reaction exerted upon the links 3 and the wheel35 engaged by the books on said links causes the withdrawal of the wheelfrom its spindle.

My invention is susceptible of other uses and applications and I desireto have it understood that it is not limited to the exact constructionand uses which are illustrated in the accompanying drawings.

Having thus described my invention, I claim i v In a device of thecharacter described, the combination of a main cross head or bodymember, links connected to the said .cross head or body member, the saidlinks liaving resistance blocks movably connected thereto, a memberadjustably connected to the said main cross head or body member, and asecond cross head secured to the said member and carrying links havinghooks or projections formed thereon, the said hooks or projections beingadapted to engage a bar and exert pressure thereon'to straighten it.

In testimony that I claim the foregoing as my invention, I have hereuntosigned my name this 31st day of January, A. D. 191 0.

HOXVARD W. BORDEN."

In the presence of-- G120. H. WEIDNER, CARRIE E. KLEINFELDER.

